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Re: Where did all my memory go?




His looks more like a leak.
12535365 size-32 slabs is definitly an abnormal situation.
Yes, it's definitely reproducible too, seems to happen every time I boot, which is rather odd, because I've been running with the same kernel and drivers for a few days now. Something must have broken it in recent upgrades. I am suspicious of mono... but otoh I tried killing almost every app without recovering the memory, so doesn't that indicate a kernel problem?

I will do testing without the nvidia driver, and also with a stock kernel (and without mono) to uncover the problem.
Not sure what this means exactly, but oprofile says:

Counted MEM_PAGE_ACCESS events (Memory controller page access) with a unit mask of 0x07 (multiple flags) count 30000
MEM_PAGE_ACCES...|
 samples|      %|
------------------
   45007 46.9326 mono
       MEM_PAGE_ACCES...|
         samples|      %|
       ------------------
           33829 75.1639 mono
            3217  7.1478 anon (tgid:3087 range:0x40caa000-0x40d1a000)
            3139  6.9745 anon (tgid:3087 range:0x40225000-0x40265000)
            1843  4.0949 anon (tgid:3087 range:0x40014000-0x40024000)
             952  2.1152 anon (tgid:3087 range:0x40878000-0x408a8000)
             608  1.3509 anon (tgid:2815 range:0x40225000-0x40275000)
             375  0.8332 anon (tgid:3087 range:0x40f1b000-0x40f8b000)
             293  0.6510 anon (tgid:3087 range:0x40466000-0x40476000)
             277  0.6155 anon (tgid:2815 range:0x40476000-0x40526000)
             153  0.3399 anon (tgid:2815 range:0x42d93000-0x42e13000)
             113  0.2511 anon (tgid:3087 range:0x40f1b000-0x40f7b000)
              94  0.2089 anon (tgid:2815 range:0x40014000-0x40024000)
              46  0.1022 anon (tgid:3087 range:0x40f1b000-0x40f6b000)
              36  0.0800 anon (tgid:2815 range:0x41f7c000-0x41f8c000)
              21  0.0467 anon (tgid:2815 range:0x40b29000-0x40b39000)
              10  0.0222 anon (tgid:2815 range:0x42d93000-0x42df3000)
               1  0.0022 anon (tgid:3087 range:0x40000000-0x40010000)
   23274 24.2698 vmlinux
   13175 13.7387 libc-2.3.90.so
    1827  1.9052 libglib-2.0.so.0.902.4
    1367  1.4255 libfb.so
    1332  1.3890 nvidia_drv.so
    1180  1.2305 nvidia
    1128  1.1763 libpthread-2.3.90.so
     908  0.9468 ext3
     849  0.8853 libsqlite3.so.0.8.6


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